2b7cdd832e323a32d5d60b6d38baf7e841e68ae634d399a6a8ecc17defd06e1d

General

Target

13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll
Size

219KB
MD5

ecce8845921a91854ab34bff2623151e
SHA1

736a4cfad1ed83a6a0b75b0474d5e01a3a36f950
SHA256

13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033
SHA512

36fda34df70629d054a55823a3cc83f9599446b36576fbc86a6aac6564460789e8b141eeb168d3e4578f28182da874dd840e57b642af1a1a315dfe08a17b53e0

Score

6^/10

bootkit persistence

Malware Config

Signatures

Drops desktop.ini file(s) 3 IoCs

Processes:

rundll32.exe

description	ioc	process
File opened for modification	C:\$Recycle.Bin\S-1-5-21-1405931862-909307831-4085185274-1000\desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Desktop.ini	rundll32.exe
File opened for modification	C:\Program Files\desktop.ini	rundll32.exe

Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

File opened (read-only) \??\D: rundll32.exe
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1067

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PhysicalDrive0 rundll32.exe

description	ioc	process
File opened (read-only)	\??\D:	rundll32.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Drops file in Program Files directory 64 IoCs

Processes:

rundll32.exe

description	ioc	process
File opened for modification	C:\Program Files\Internet Explorer\en-US\networkinspection.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\F12.dll	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\include\win32\jni_md.h	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\InkObj.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Bears.jpg	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\HueCycle\NavigationLeft_ButtonGraphic.png	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Pets_image-frame-ImageMask.png	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsScenesBackground.wmv	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\JdbcOdbc.dll	rundll32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\el.txt	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipsdeu.xml	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\ja-JP\TmfF20C.tmp	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Title_Page_Ref.wmv	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\NavigationRight_ButtonGraphic.png	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\TmfEF5E.tmp	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ipsfra.xml	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\tiptsf.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\TmfF1CE.tmp	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\en-US\wab32res.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPOBJS.DLL	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\handler.reg	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\en-US\sqloledb.rll.mui	rundll32.exe
File opened for modification	C:\Program Files\7-Zip\Lang\fr.txt	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\de-DE\mshwLatin.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\web\webbase.xml	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\journal.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\rtscom.dll	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\NavigationLeft_SelectionSubpicture.png	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\Panel_Mask_PAL.wmv	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\Tmf1BCA.tmp	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\Tmf1BF9.tmp	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\ssv.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\de-DE\TmfF19F.tmp	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\appletviewer.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\kcms.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\web\TmfEF10.tmp	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\mshwjpnr.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\es-ES\sqlxmlx.rll.mui	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\bandwidth.png	rundll32.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\default_apps\youtube.crx	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Shatter\NavigationLeft_SelectionSubpicture.png	rundll32.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\Locales\hi.pak	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\en-US\DiagnosticsTap.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\es-ES\mip.exe.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\ru-RU\tipresx.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\MSTTSLoc.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\it-IT\msdaprsr.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Push\1047_576black.png	rundll32.exe
File opened for modification	C:\Program Files\Internet Explorer\en-US\eula.rtf	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\Ole DB\oledbjvs.inc	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\button-highlight.png	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\bin\apt.exe	rundll32.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\jre\bin\hprof.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\wab32res.dll	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\ResizingPanels\Panel_Mask.wmv	rundll32.exe
File opened for modification	C:\Program Files\7-Zip\readme.txt	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\keypad.xml	rundll32.exe
File opened for modification	C:\Program Files\Common Files\SpeechEngines\Microsoft\TTS20\es-ES\MSTTSLoc.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\ado\adojavas.inc	rundll32.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\msadcor.dll	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\TmfEEA3.tmp	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\ink\sv-SE\tipresx.dll.mui	rundll32.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Stationery\Peacock.jpg	rundll32.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\header-background.png	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1664 wrote to memory of 1092	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1092	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1092	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1092	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1092	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1092	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1092	1664	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\13037b749aa4b1eda538fda26d6ac41c8f7b1d02d83f47b0d187dd645154e033.dll,#1
  2⤵
  - Drops desktop.ini file(s)
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Drops file in Program Files directory
  PID:1092